ServicePoint: Use DateTime.UtcNow internally, which avoids looking up the timezone...

[mono.git] / mcs / class / System / System.ComponentModel / BaseNumberConverter.cs

diff --git a/mcs/class/System/System.ComponentModel/BaseNumberConverter.cs b/mcs/class/System/System.ComponentModel/BaseNumberConverter.cs
index 5aac55e7e566888b3931f37ecdc4b78edd572b34..738150c4bfb90f7631f2d07b2d42329d8321b79a 100644 (file)
--- a/mcs/class/System/System.ComponentModel/BaseNumberConverter.cs
+++ b/mcs/class/System/System.ComponentModel/BaseNumberConverter.cs
@@ -1,9 +1,120 @@
 //
 // System.ComponentModel.BaseNumberConverter.cs
 //
+// Authors:
+//   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
 //
+// (C) 2002/2003 Ximian, Inc (http://www.ximian.com)
+// (C) 2003 Andreas Nahr
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Globalization;
+
+namespace System.ComponentModel
+{
+       public abstract class BaseNumberConverter : TypeConverter
+       {
+               internal Type InnerType;
+
+               protected BaseNumberConverter()
+               {
+               }
+
+               internal abstract bool SupportHex {
+                       get;
+               }
+
+               public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
+               {
+                       return sourceType == typeof (string) || base.CanConvertFrom (context, sourceType);
+               }
+
+               public override bool CanConvertTo(ITypeDescriptorContext context, Type t)
+               {
+                       return t.IsPrimitive || base.CanConvertTo (context, t);
+               }
+
+               public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
+               {
+                       if (culture == null)
+                               culture = CultureInfo.CurrentCulture;
+
+                       string text = value as string;
+                       if (text != null) {
+                               try {
+                                       if (SupportHex) {
+                                               if (text.Length >= 1 && text[0] == '#') {
+                                                       return ConvertFromString (text.Substring (1), 16);
+                                               }
+
+                                               if (text.StartsWith ("0x") || text.StartsWith ("0X")) {
+                                                       return ConvertFromString (text, 16);
+                                               }
+                                       }
+
+                                       NumberFormatInfo numberFormatInfo = (NumberFormatInfo) culture.GetFormat(typeof(NumberFormatInfo));
+                                       return ConvertFromString (text, numberFormatInfo);
+                               } catch (Exception e) {
+                                       // LAMESPEC MS wraps the actual exception in an Exception
+                                       throw new Exception (value.ToString() + " is not a valid "
+                                               + "value for " + InnerType.Name + ".", e);
+                               }
+                       }
+
+                       return base.ConvertFrom (context, culture, value);
+               }
+
+               public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture,
+                                                object value, Type destinationType)
+               {
+                       if (value == null)
+                               throw new ArgumentNullException ("value");
+
+                       if (culture == null)
+                               culture = CultureInfo.CurrentCulture;
+
+                       if (destinationType == typeof (string) && value is IConvertible)
+                               return ((IConvertible) value).ToType (destinationType, culture);
+
+                       if (destinationType.IsPrimitive)
+                               return Convert.ChangeType (value, destinationType, culture);
+
+                       return base.ConvertTo (context, culture, value, destinationType);
+               }
+
+               internal abstract string ConvertToString (object value, NumberFormatInfo format);
+
+               internal abstract object ConvertFromString (string value, NumberFormatInfo format);
 
-namespace System.ComponentModel {
-       public class BaseNumberConverter : TypeConverter {
+               internal virtual object ConvertFromString (string value, int fromBase)
+               {
+                       if (SupportHex) {
+                               throw new NotImplementedException ();
+                       } else {
+                               throw new InvalidOperationException ();
+                       }
+               }
        }
 }